ITEM NAME:Screw & Nut Assortment Kit Flat Head Set M3 M4 M5 (280pcs) Socket Cap Hex Bolt Descriptio n Product Name: Button Head Screw Drive Type: Hex Socket Head Style: Button Head Thread Dia.: M3 M4 M5 Pitch: 0.5mm 0.7mm 0.8mm High Quality Alloy Steel Hex Socket Button Head Bolts Screws Nuts Kit. Provide with great acid and alkali resistance performance. Fixing component, industrial and construction fasteners. Great for home or workplace. Comes with a Sturdy Transparent Storage Case organized by size for quick access and protection. MATERIAL: alloy steel Package Quantity: 280Pcs (Include M3 M4 M5 Nuts) FEATURES: Hex Socket Button Head Bolts Screws and Nuts Kit with Storage Case APPLICATION: Great for home or workplace in many applications Quality: carbon steel grade 4.8 Packing box size: 12.5*6.2*2.2CM Size and quantity: M3×4 - 20 M3×5 - 20 M3×6 - 20 M3×8 - 20 M3×10 - 20 M3×12 - 20 M3×16 - 20 M3×20 - 20 M3×25 - 20 M3 nut - 100 A total of 280 pieces in a box Product list: 1*1 box Cylindrical head hex screw nut combination set High quality buy, happy buyï ¼ 280PCS/Lot M3 Button Head Hex Socket Screw Bolt Nut Alloy Steel SET new.Thread Dia.: M3 M4 M5. 280PCS/Lot M3 Button Head Hex Socket Screw Bolt Nut Alloy Steel SET new. Drive Type: Hex Socket. High Quality Alloy Steel Hex Socket Button Head Bolts Screws Nuts Kit. FEATURES: Hex Socket Button Head Bolts Screws and Nuts Kit with Storage Case.